Peter Finch
Murray Logan
Acting
Jane Fonda
Christine Bonner
Acting
Angela Lansbury
Sybil Logan
Acting
Arthur Hill
Sam Bonner
Acting
Constance Cummings
Mrs. Nina Gellert
Acting
Alexander Knox
Frederick Bonner
Acting
Nigel Davenport
Leonard Groves
Acting
John Le Mesurier
Dr. Arraman
Acting
Alec McCowen
Dickie Bayliss
Acting
Andreas Markos
Andreas
Acting
Thomas Baptiste
Murray Logan's chauffeur (uncredited)
Acting
Madeleine Sherwood
Party Hostess (uncredited)
Acting
Valerie Taylor
Lily Kendrick
Acting